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Finding the Fourth Proportional to 58,161.51, 87,223.77 and 18,709.44

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Solution

The fourth proportional to 58,161.51, 87,223.77 and 18,709.44 is: 28,058.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,161.51 : 87,223.77 = 18,709.44 : x
  2. Step 2: Convert to fraction form
    58,161.51/87,223.77 = 18,709.44/x
  3. Step 3: Cross multiply
    58,161.51x = 87,223.77 × 18,709.44
  4. Step 4: Simplify right side
    58,161.51x = 1,631,907,891.39
  5. Step 5: Solve for x
    x = 1,631,907,891.39/58,161.51
  6. Step 6: Final answer
    x = 28,058.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.